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Show 310 ON THE GROWTH OF HAIR UPON THE HUMAN EAR. [Mar. 2, EXPLANATION OF THE PLATES. PLATE XIX. Ears of Man, adults and infants. Fig. 1. Left ear of girl at 36th day after birth, front and back views; enlarged. 2. Eight ear of infant girl, back view; enlarged, a, base; b, thick growth. 3. Left ear of same child, back view; enlarged, a, base; b, thick growth. 4. Left ear of adult, front view. 5. Left ear of adult, back view. 6, 7. Eight ears of adult, front views. PLATE XX. Ears of Man, infants. Fig. 8. Ear of infant 4 days old; hairs meet at a. 9. Same seen from above showing hairs crossing and small tuft. 10. 6 days old; hairs cross at b. 11. Nodule at c, hairs meet there. 12,13. Under 1 month, hairs converge on d, and cross. 14, 15. 10 days old. 16. 2 days old, much fine white hair, longest upon back of ear and on edge of helix ; hairs meet at e; no cusp. 17. 5 months old; hairs converge from /,/, Darwin's Point bare, g. 18. Hairs cross on inner edge of helix, h. 19. 10 days old. PLATE XXI. Ears of Anthropoid Apes. Fig. 20. Ear of Hoolock Gibbon showing a few hairs (a); no hairs on the back of the ear. 21. Ear of Chimpanzee, Q* jr. 22. Ear of do. b, c, hairs converging; no cusp. 23. Ear of do. e, hairs. 24,25. Ear of Gorilla, jr.; d, Darwin's Point? Hairs on margin numerous and definitely directed towards a. PLATE XXII. Ears of Monkeys and Lemurs. Fig. 26. Ear of Cynocephalus. 27. Ear of Cercopithecus cynosurus, 28. Ear of C. albiyularis. 29. Ear of C. petaurista. 30, 31. Ear of C. lalandii, jr.; front and back views. 32. Ear of Monkey, sp. inc. 33. Ear of Macacus maurus, hairs from both back and front converge upon a, and cross points there. 34. Ear of Lemur, sp. inc. 35. Ear of Eing-tailed Lemur. 36. Ear of Loris. 37. Back of left ear of Aye-Aye. |
